Edit.....I know you have a 2003" from one of your other Threads........when asking for Help/Advice, make sure to give as much Information about your Vehicle as you can......Year.....Model.....Engine....Etc.....:glasses:

I'll admit I fell for the theory of more HP and MPG's with a spacer, 2 years later I finally got the energy to take it off since it wasnt doing anything for the truck and I found the real purpose of a throttle body spacer (besides removing your hard earned money) it works great as a paper weight.

I wasted money on a tb spacer. Like everyone else its a waste of money. Even when added with Cai, exhaust, and headers, your better off saving your money for something worth it. I took mine off and noticed no difference at all. Still same throttle response and mph...